GCC-4.5.0 comparison with previous releases and LLVM-2.7 on SPEC2000 for x86/x86_64

[Paolo Bonzini]

On 11/13/2010 10:08 PM, Xinliang David Li wrote:
> Though gcc leads LLVM in performance overrall, there are a couple of
> benchmarks gcc is worse: vpr and crafty (64bit and 32bit), parser and
> twolf (32bit), vortex (64bit).  This needs to be triaged.   gcc
> miscompiles gcc and eon in 32bit -- is there a bug tracking the
> problem?

Have you tried -ffast-math or -mfpmath=sse for eon?

Paolo